ru.cwcode.commands.arguments.basic.StringArg Maven / Gradle / Ivy

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package ru.cwcode.commands.arguments.basic;

import ru.cwcode.commands.Argument;
import ru.cwcode.commands.CompletionStyle;
import ru.cwcode.commands.api.Sender;

import java.util.Collections;
import java.util.List;
import java.util.Objects;
import java.util.regex.Pattern;

import static ru.cwcode.commands.api.CommandsAPI.l10n;

public class StringArg extends Argument {
  static final int INITIAL_MAX_STRING_LENGTH = 10000;
  protected String placeholder = l10n.get("argument.string.placeholder");
  int min = 1;
  int max = INITIAL_MAX_STRING_LENGTH;
  CompletionStyle style = CompletionStyle.PLACEHOLDER;
  Pattern pattern;
  
  public StringArg(String placeholder) {
    this.placeholder = placeholder;
  }
  
  public StringArg() {
  }
  
  public StringArg setMin(int min) {
    this.min = min;
    return this;
  }
  
  public StringArg setMax(int max) {
    this.max = max;
    return this;
  }
  
  public StringArg setStyle(CompletionStyle style) {
    this.style = style;
    return this;
  }
  
  public StringArg setPlaceholder(String placeholder) {
    this.placeholder = placeholder;
    return this;
  }
  
  public StringArg setPattern(Pattern pattern) {
    this.pattern = pattern;
    return this;
  }
  
  @Override
  public boolean valid(String raw) {
    if (raw.length() < min || raw.length() > max) return false;
    return pattern == null || pattern.matcher(raw).matches();
  }
  
  @Override
  public List completions(Sender sender) {
    if (Objects.requireNonNull(style) == CompletionStyle.PLACEHOLDER) {
      return Collections.singletonList(placeholder);
    }
    return Collections.emptyList();
  }
  
  @Override
  public String argumentName() {
    return placeholder;
  }
  
  @Override
  protected String hint() {
    if (pattern != null) return pattern.pattern();
    
    boolean maxFlag = max != INITIAL_MAX_STRING_LENGTH;
    
    if (maxFlag) return l10n.get("argument.string.hint.minmax", min, max);
    return l10n.get("argument.string.hint.min", min);
  }
}